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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Answer the following. Acidic character of hydrides of group 16 elements increases from H2O to H2Te. Explain.

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प्रश्न

Answer the following.

Acidic character of hydrides of group 16 elements increases from H2O to H2Te. Explain.

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उत्तर

The acidic character of the hydrides increases from H2O to H2Te because the bond dissociation enthalpy of the H–E bond decreases down the group. (where, E = O, S, Se, Te)

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पाठ 7: Elements of Groups 16, 17 and 18 - Exercises [पृष्ठ १६४]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 7 Elements of Groups 16, 17 and 18
Exercises | Q 3. ii. | पृष्ठ १६४

संबंधित प्रश्‍न

Select appropriate answers for the following.

BrCl reacts with water to form _______.


In interhalogen compounds, which of the following halogens is never the central atom?


Select appropriate answers for the following.

Among the known interhalogen compounds, the maximum number of atoms is _______.


Answer the following.

Write the order of the thermal stability of the hydrides of group 16 elements.


Give two uses of ClO2.


Answer the following.

What is the action of bromine on magnesium metal?


Write the names of allotropic forms of selenium.


The pKa value of HCl is −7.0 and that of HI is −10.0. Which is the stronger acid?


Complete the following.

H2C = CH2 + ICl → _______


Complete the following.

\[\ce{XeOF4 + H2O -> \underline{}\underline{}\underline{}\underline{} + HF}\]


Match the following:

A B
XeOF2 Xenon trioxydifluoride
XeO2F2 Xenon monooxydifluoride
XeO3F2 Xenon dioxytetrafluoride
XeO2F4 Xenon dioxydifluoride

Answer the following.

Distinguish between rhombic sulfur and monoclinic sulfur.


How is SO2 prepared in the laboratory from sodium sulfite?


Identify the properties of group 17 elements that show decreasing trend down the group.

i. Atomic radius

ii. Ionisation enthalpy

iii. Electronegativity


Which one of the following ions has same number of unpaired electrons as those present in V3+ ion?


Which of the following is INCORRECT with respect to given reaction?

\[\ce{C6H12O6 + 6O2 -> 6CO2 + 6H2O}\]


What is the highest oxidation state possessed by phosphorus in it's oxyacids?


What is the oxidation state of sulfur in the product formed?

\[\ce{S + \underset{(Conc.)}{2H2SO4} ->}\]


Arrange the following in the increasing order of their acidic strength.


What is the oxidation state of sulphur in oil of vitriol?


What is the action of selenium on magnesium metal?


The most stable +2 oxidation state is exhibited by ______.


Which halide of magnesium has highest ionic character?


Explain reactivity of halogens towards oxygen.


What is the action of hydrochloric acid on the following?

NH3


Arrange the following in the increasing order of the property mentioned:

\[\ce{HF}\], \[\ce{HCl}\], \[\ce{HBr}\], \[\ce{HI}\] (thermal stability)


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